Shock absorbing socket



Dec. 4, 1934. R B BENJMlN k 1,982,781

r SHOCK ABsoRBING SOCKET Filed May 19, 1930 2 Sheets-Sheet 2 Patented Dec. 4, 1934 A 1,982,781y snocnnsomnnd speling;

Reuben B. Benjamin,` Chicago, Ill.,V assignorfto Benjamin-ElectricMfg. Co., Des-Plaines, Ill.,` a.corporfation.oillli'nos y Application, May- 19, 1930 Serial, No. .4531,47 l

.'iClaims.-` (Cl.` 173-358) l This; invention;l relates` to shock` absorbing,lthroughfholes,providedlthetefor.inthe backing;` sockets. portion. It iseVidentthat any other .typef C011.` One of the. objects oithis invention is to pr9vide l tactzor terminal maybe .used:n.place; of =the: ring an improved shockabsorbingwsocket constructions contactszshown. ffwhieh will;be,easy-to;assemble and-wire, efficientA Af. lampreceptacle;` and-.gthezmef 1.nsforf;resilf.` 60,.Y and durable..A iently supportingand.electricallyfconnecting; the.,V Another objectl of ;thisinvention.is to provide` sameto4 the Arestof .the-,socketcomprisestagshellf. a.shock,absorbinggsocketof thetype abo,ve;re` contacts;hayngaicenter.cont,act.9,1whchshell, ferredto inwhichaxialmovement of thelamp :reand :center` contacts are adapted ztogengagetm z 10;.ceptac1eislimited without aiiectingthe resiliency lamp base\.;contacts of.;a.lamp;:.to be inserted in 65,

of .thefsocket the. shell.` Attached .to the top .;of .thelampt re- Further objectsand advantages -will y,be apparf ceptacle, asbymeans-.of rivetingnr.the.1ik e are ent-f-ifromathe..following description when taken leaf-springimembers 10;..11 -and,12,1madez of-tany; togetherv with the accompanying. drawings,..in= suitable conducting material. The leaf-springt;

15 whichzlattem membersldand'Ilarefastenedto the shellipand 70 Figurelis atonplanviewoga shoclcabsorbingy. the. leaffspring member.;12ms;fastendito. the1 socket embodyingthepresentinvention; upperportion of.thencentertcontact 9.a.4 Secured;

Figs 2;is a .bottom plan viewrof the socket shown i. to the,.,free. ends,.of the leafi-,springgmembers 10; ingFigurel; p 11 and 112`fby. anydesirable. means, `s116134 lasgrivet- 20 rl Fig. 351s a-,central verticahcros's sectional view. ing,l are Z-shapediarms113, lfliandl. Eaclnof '15,I

taken `cnytlfie line 3f3;of Figure v1; the. arms .13, 14.,and15, as; showrrn.;Figs.'` 4 land.:

Fig. .451s `a vertical crosscsectional `View. taken. 5, has a portion whicheliesonitop.;of ,.theplea-` on the line@ `4..4 `of Figf2; spring members adjacent the; means.semlring` ,the

Fig. 51 is-.arftop plan view of theispring construcf i two. vtogether and thenyis bentnupwardly atirightv 25` tion #for resiliently supporting alamp,holderwithl angles,V after. which; therfree end. is againibent. 80., in: theqsocket.v andgelectrically connecting.- con so. as to;lie,parall'el1toithexend` securedmonthe tactsgtherein; springs. The. lamprreceptacle .'andresl-ient :supe

Fggnisia-.bottom-viewot amodiediorm of porting meanseareinsertedwinlthelrcupglikelbase shoclcabsorbingsocket; with the'screw G .threading into` theiupperfgfree 3cy Fig,-7;isa.tcp plan viewofthesocket shown in, end of :the armzlrand; thescrewsgthreading Eig. 6;;' into the upper freeendsnthe arms 13,.andlih` Fig-Seissavertical ,sectional view .takenon the When-.thenwreslare connected 'to..the; terminals linef-gof Fig.; 6; y i f the center, contact. receives. :current: from; the. Eig. 951is1a; Ivertical sectionalfviewfltaken ori-.the ringterminalArthroughjhe: screw; Glzthe'. arm15.; 3g;2 linel9-,91of-1Fig. 6;' and;theileafsspring.;membrilZiugand t,lna.fs;`l1e` or; 90., Fig- .;luis.1a-.mpplanview.ofjthedamp'receptacleI shell contact receives current thrgugmtheming; .and spring members for-supporting.andelectrif terminal 5, the screws '7, the arms 13 andfl4fand callvrennecting the-isamewwthn the Socket usedv thersptingsfltand 1.1i.A l v inthe construction shown in Fig. 6; In order to limit axial movement of the lamp 4W Fig. 11 is a cross sectional view taken on the line receptacle when inserting or withdrawing a lamp 95.,

' 11-11 of Fig. 6; therefrom, an abutment member i6 is threaded Fig. 12 is a cross sectional view taken on the onto the lower or inner end of the screw 6 and line 12--12 of Fig.'?; extends downwardly into the top of the lamp Fig 13 '1S a SeCJOn 011 the line 13--13 O Fg- 2; receptacle. An extension 9a of the center conqifand tact 9, preferably formed integrally therewith, 199

' Fig. 14 is a perspective view of the parts shown engages the abutment member 16, the portion 9a in Fig. 5. being provided with an opening through which Referring more particularly to the drawings, the abutment member extends. Holes 1'7 are prothe construction shown comprises an insulating vided in the base 1, which holes, as shown in Fig. agjicup-like base 1 having a reduced portion 2. Ring 4, extend inwardly from the shoulder portion 18 19;?

contacts or terminals 4 and 5 are positioned on formed by the reduced portion 2. Screws 19 the back of the insulating base, the ring 4 being are extended through these openings 17 so as held in place by a screw 6 and the ring 5 by screws to hold a reflector supporting member 20 in posi- "I, all of which screws extend through the back tion about the socket. Also, as shown in Fig. 4', of the insulating base and into the cup-like base a screw threaded annular connector 21 may be uq held by the screws 19 so that the whole socket and reflector may be screwed into a threaded support adapted to receive the annular connector 21.

In the modied form shown in Figs. 6 to 12, the cup-like base 21 is formed with opposite sides 22 and 23 flat so as to engage the arms 24 and 25 of a spring clip supporting member. Projections 26 and 27 are provided on the flat portions 22 and 23 for the purpose of holding the socket in place within the spring clip supporting member. The spring-clip supporting member is riveted to a bushing 28 which is adapted to be screwed into an outlet box or the like. Terminal plates 29 and 30 with the terminal screws 31 and 32 are provided on the back of the insulating base.

Referring to Figs. 10, 11 and 12, the lamp receptacle and resilient means for supporting the same, comprises a shell contact 33 and a center contact 34. Attached to the center contact 34 is a leaf-spring member 35 and attached to the shell contact 33 are the leaf-spring members 36 and 37, which spring members are made of any suitable conductingmaterial. Here again rivetn ing is preferably employed as the securing means.

The lamp receptacle is supported within the cuplike base by means of screws 38 which extend up through the free end of the leaf-spring members 35 and 36 through openings provided therefor in the rear of the base and are threaded into the terminal plates 29 and 30. The leaf-spring member 37 is secured to the rear of the base by means of a screwr similar to the screw 39 of Fig. 7.

With this construction lead wires are attached to the terminal screws 31 and 32. The current is then carried to the center contact by means of the terminal plate 30, one of the screws 38 and the leaf-spring member 35, and the current is v`lcarried tothe shell contact by' means of the terminal plate 29, the other of the screws 38 and the leaf-spring member 36.

By means of the spring clip supporting member, the whole socket may be easily removed from the rest of the fixture and as the terminals and terminal screws are accessible from the sides of the socket, it is a very simple matter to change or substitute any socket by this means.

While but a single embodiment of this invention is herein shown and described, it is to be understood that various modications thereof may be apparent to those skilled in the art without departing from the spirit and scope `of this invention and, therefore, the same is to be limited only by the scope of the appended claims and the prior art.

I claim: f l

1. A shock absorbing socket construction ccmy neath the insulating. base.

prising an insulating base, a. lamp holder and contact construction yieldingly supported on said base, comprising shell and center contacts for engaging the lamp base contacts, a plurality of conductor members on the back of the insulating base, means for yieldingly supporting said lamp holder comprising a plurality of leaf-spring members on saidbase, said `spring members each being electrically connected at one end to one of said lamp holder contacts, and at the other to .supporting arms, and securing means extending through the back of said insulating base for securing' said supporting arms to said base and electrically connecting them' with said conductor members respectively.

2. A shock absorbing socket construction comprising a resiliently supported lamp holder having shell and center contacts, said shell contact havingan inwardly extending fiange at its upper end, and means for resiliently supporting said lamp holder and supplying current to said contacts comprising a plurality of supporting leaf springs of sheet metal, one spring having one end electrically connected with the center contact and another spring having one end electrically connected with the shell contact, supporting means and means for securing the other ends of said springs to said supporting means at points spaced about the axis of the shell contact and lying outside a cylindrical surface containing the shell contact whereby they are readily accessible for the securing operation.

3. A shock absorbing socketr construction comprising a resiliently supported lamp holder having shell and center contacts, said shell contact having an inwardly extending flange at its upper end, means for resiliently supporting said lamp holder and supplying current to said contacts comprising a plurality of supporting leaf springs of sheet metal, one spring having one end electrically connected with the center contact and another spring having one end electrically connected with the shell contact, supporting means and means for securing the other-ends of said springs to said supporting means at points spaced about the axis 0f the shell contact and lying outside a cylindrical surface containingthe shell contact whereby they are readily accessible for the securing operation, said supporting means comprising an insulating base underneath which said holder is supported, electrical terminals on the upper side of said base, and said securing means comprising conducting means extending through said insulating base for electrically connecting the electrical terminals -with -the leaf springs and supporting the leaf springs under- REUBEN B.V f BENJAMIN. 

